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Applicability of the use of waste from different banana cultivars for the cultivation of the oyster mushroom BJM
Carvalho,Cristiane Suely Melo de; Aguiar,Lorena Vieira Bentolila de; Sales-Campos,Ceci; Minhoni,Marli Teixeira de Almeida; Andrade,Meire Cristina Nogueira de.
The objective of this research was to evaluate the oyster mushroom Pleurotus ostreatus- (Jacq.: Fr.) Kumm. cultivation in substrates based on different combinations of wastes (leaf, pseudo-stem and pseudo-stem + leaf) and banana cultivars - Musa spp. (Thap Maeo, Prata Anã, Pelipita and Caipira) during 49 days. Organic matter loss in the substrate by action of the fungus was also evaluated during that period. It was verified that the pseudo-stem waste provided the best averages of biological efficiency among all cultivars tested and best rates were obtained by Thap Maeo (61.5%). The highest organic matter loss (OML) was obtained from pseudo-stem + leaf wastes (Prata Anã - 78.6%; Thap Maeo - 67.6%; Pelipita - 64.8%; Caipira - 60.6%). Therefore, the use of...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Pleurotus ostreatus; Mycelium; Organic matter; Biological efficiency; Supplementation.
Ano: 2012 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822012000200048
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Tolerance to temperature, pH, ammonia and nitrite in cardinal tetra, Paracheirodon axelrodi, an amazonian ornamental fish Acta Amazonica
Oliveira,Sarah Ragonha de; Souza,Rondon Tatsuta Yamane Baptista de; Nunes,Érica da Silva Santiago; Carvalho,Cristiane Suely Melo de; Menezes,Glauber Cruz de; Marcon,Jaydione Luíz; Roubach,Rodrigo; Ono,Eduardo Akifumi; Affonso,Elizabeth Gusmão.
Poor water quality condition has been pointed out as one of the major causes for the high mortality of ornamental fishes exported from the state of Amazonas, Brazil. The purpose of the current study was to define water quality standards for cardinal tetra (Paracheirodon axelrodi), by establishing the lower and higher for lethal temperature (LT50), lethal concentration (LC50) for total ammonia and nitrite and LC50 for acid and alkaline pH. According to the findings, cardinal tetra is rather tolerant to high temperature (33.3 ºC), to a wide pH range (acid pH=2.9 and alkaline pH=8.8) and to high total ammonia concentration (23.7 mg/L). However, temperatures below 19.6 ºC and nitrite concentrations above 1.1 mg/L NO2- may compromise fish survival especially...
Tipo: Info:eu-repo/semantics/article Palavras-chave: 96-h LC50; Ornamental fish; Paracheirodon axelrodi; Water quality.
Ano: 2008 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672008000400023
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